About the security content of Safari 16.4

This document describes the security content of Safari 16.4.

About Apple security updates

For our customers' protection, Apple doesn't disclose, discuss, or confirm security issues until an investigation has occurred and patches or releases are available. Recent releases are listed on the Apple security updates page.

Apple security documents reference vulnerabilities by CVE-ID when possible.

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Safari 16.4

Released March 27, 2023

WebKit

Available for: macOS Big Sur and macOS Monterey

Impact: Processing maliciously crafted web content may bypass Same Origin Policy

Description: This issue was addressed with improved state management.

WebKit Bugzilla: 248615
CVE-2023-27932: an anonymous researcher

WebKit

Available for: macOS Big Sur and macOS Monterey

Impact: A website may be able to track sensitive user information

Description: The issue was addressed by removing origin information.

WebKit Bugzilla: 250837
CVE-2023-27954: an anonymous researcher

WebKit Web Inspector

Available for: macOS Big Sur and macOS Monterey

Impact: A remote attacker may be able to cause unexpected app termination or arbitrary code execution

Description: This issue was addressed with improved state management.

CVE-2023-28201: Dohyun Lee (@l33d0hyun), crixer (@pwning_me) of SSD Labs

Entry added May 1, 2023

Additional recognition

CFNetwork

We would like to acknowledge an anonymous researcher for their assistance.

WebKit

We would like to acknowledge an anonymous researcher for their assistance.

WebKit Web Inspector

We would like to acknowledge Dohyun Lee (@l33d0hyun) and crixer (@pwning_me) of SSD Labs for their assistance.

 

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